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https://github.com/brain-hackers/u-boot-brain
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9368bdfebd
This parameter "st,phy-cal" becomes optional and when it is
absent the built-in PHY calibration is done.
It is the case in the helper dtsi file "stm32mp15-ddr.dtsi"
except if DDR_PHY_CAL_SKIP is defined.
This patch also impact the ddr interactive mode
- the registers of the param 'phy.cal' are initialized to 0 when
"st,phy-cal" is not present in device tree (default behavior when
DDR_PHY_CAL_SKIP is not activated)
- the info 'cal' field can be use to change the calibration behavior
- cal=1 => use param phy.cal to initialize the PHY, built-in training
is skipped
- cal=0 => param phy.cal is absent, built-in training is used (default)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
158 lines
2.3 KiB
Plaintext
158 lines
2.3 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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/*
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* Copyright : STMicroelectronics 2018
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*/
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/ {
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soc {
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ddr: ddr@5a003000 {
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u-boot,dm-pre-reloc;
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compatible = "st,stm32mp1-ddr";
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reg = <0x5A003000 0x550
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0x5A004000 0x234>;
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clocks = <&rcc AXIDCG>,
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<&rcc DDRC1>,
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<&rcc DDRC2>,
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<&rcc DDRPHYC>,
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<&rcc DDRCAPB>,
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<&rcc DDRPHYCAPB>;
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clock-names = "axidcg",
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"ddrc1",
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"ddrc2",
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"ddrphyc",
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"ddrcapb",
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"ddrphycapb";
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st,mem-name = DDR_MEM_NAME;
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st,mem-speed = <DDR_MEM_SPEED>;
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st,mem-size = <DDR_MEM_SIZE>;
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st,ctl-reg = <
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DDR_MSTR
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DDR_MRCTRL0
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DDR_MRCTRL1
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DDR_DERATEEN
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DDR_DERATEINT
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DDR_PWRCTL
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DDR_PWRTMG
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DDR_HWLPCTL
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DDR_RFSHCTL0
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DDR_RFSHCTL3
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DDR_CRCPARCTL0
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DDR_ZQCTL0
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DDR_DFITMG0
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DDR_DFITMG1
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DDR_DFILPCFG0
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DDR_DFIUPD0
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DDR_DFIUPD1
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DDR_DFIUPD2
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DDR_DFIPHYMSTR
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DDR_ODTMAP
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DDR_DBG0
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DDR_DBG1
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DDR_DBGCMD
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DDR_POISONCFG
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DDR_PCCFG
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>;
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st,ctl-timing = <
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DDR_RFSHTMG
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DDR_DRAMTMG0
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DDR_DRAMTMG1
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DDR_DRAMTMG2
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DDR_DRAMTMG3
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DDR_DRAMTMG4
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DDR_DRAMTMG5
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DDR_DRAMTMG6
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DDR_DRAMTMG7
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DDR_DRAMTMG8
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DDR_DRAMTMG14
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DDR_ODTCFG
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>;
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st,ctl-map = <
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DDR_ADDRMAP1
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DDR_ADDRMAP2
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DDR_ADDRMAP3
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DDR_ADDRMAP4
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DDR_ADDRMAP5
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DDR_ADDRMAP6
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DDR_ADDRMAP9
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DDR_ADDRMAP10
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DDR_ADDRMAP11
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>;
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st,ctl-perf = <
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DDR_SCHED
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DDR_SCHED1
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DDR_PERFHPR1
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DDR_PERFLPR1
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DDR_PERFWR1
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DDR_PCFGR_0
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DDR_PCFGW_0
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DDR_PCFGQOS0_0
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DDR_PCFGQOS1_0
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DDR_PCFGWQOS0_0
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DDR_PCFGWQOS1_0
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DDR_PCFGR_1
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DDR_PCFGW_1
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DDR_PCFGQOS0_1
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DDR_PCFGQOS1_1
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DDR_PCFGWQOS0_1
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DDR_PCFGWQOS1_1
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>;
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st,phy-reg = <
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DDR_PGCR
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DDR_ACIOCR
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DDR_DXCCR
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DDR_DSGCR
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DDR_DCR
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DDR_ODTCR
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DDR_ZQ0CR1
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DDR_DX0GCR
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DDR_DX1GCR
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DDR_DX2GCR
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DDR_DX3GCR
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>;
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st,phy-timing = <
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DDR_PTR0
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DDR_PTR1
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DDR_PTR2
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DDR_DTPR0
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DDR_DTPR1
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DDR_DTPR2
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DDR_MR0
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DDR_MR1
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DDR_MR2
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DDR_MR3
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>;
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#ifdef DDR_PHY_CAL_SKIP
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st,phy-cal = <
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DDR_DX0DLLCR
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DDR_DX0DQTR
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DDR_DX0DQSTR
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DDR_DX1DLLCR
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DDR_DX1DQTR
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DDR_DX1DQSTR
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DDR_DX2DLLCR
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DDR_DX2DQTR
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DDR_DX2DQSTR
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DDR_DX3DLLCR
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DDR_DX3DQTR
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DDR_DX3DQSTR
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>;
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#endif
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status = "okay";
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};
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};
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};
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